public class People {
    int leg,hand;
    String name;
    People(String s){
      name = s;
      this.init();    //可以省略this,即将“this.init();”写成“init();"
    }
void init () {
      leg = 2;
      hand = 2;
      System.out.println(name+"有"+hand+"只手"+leg+"条腿");
    }
public static void main (String args[]) {
    People boshi = new People("布什");   //创建boshi时，构造方法中的this就是对象boshi
   }
}
